Balanced metamaterial antenna device
First Claim
1. An antenna apparatus, comprising:
- a first radiating element comprising a CRLH structure;
a second radiating element comprising a second CRLH structure; and
a common conductive line connected to the first and second radiating elements;
a feed port for providing an unbalanced signal; and
a balun coupled to the first and second radiating elements, the feed port and the common conductive line, the balun adapting the unbalanced signal from the feed port to a balanced signal for the first and second radiating elements or adapting a balanced signal from the first and second radiating elements to an unbalanced signal for the feed port;
wherein each of the first and second radiating elements provide a left-handed (LH) mode resonance and a right-handed (RH) mode resonance.
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Accused Products
Abstract
This document describes designs and techniques for directly feeding an unbalanced transmission line with a balanced antenna using Composite Right and Left Handed (CRLH) and balun structures. According to various examples, first and second radiating elements, first and second antenna structures, or first and second portions of an antenna structure can provide a left-handed (LH) mode resonance and a right-handed (RH) mode resonance. A feed port can provide an unbalanced signal, and a balun structure can be coupled to the first and second radiating elements, first and second antenna structures, or first and second portions of an antenna structure, to adapt the unbalanced signal from the feed port to a balanced signal for coupling to the first and second radiating elements, first and second antenna structures, or first and second portions of an antenna structure.
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Citations
43 Claims
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1. An antenna apparatus, comprising:
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a first radiating element comprising a CRLH structure; a second radiating element comprising a second CRLH structure; and a common conductive line connected to the first and second radiating elements; a feed port for providing an unbalanced signal; and a balun coupled to the first and second radiating elements, the feed port and the common conductive line, the balun adapting the unbalanced signal from the feed port to a balanced signal for the first and second radiating elements or adapting a balanced signal from the first and second radiating elements to an unbalanced signal for the feed port; wherein each of the first and second radiating elements provide a left-handed (LH) mode resonance and a right-handed (RH) mode resonance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device, comprising:
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a substrate; a first antenna portion formed on the substrate; a second antenna portion formed on the substrate and coupled to the first antenna portion, wherein the first antenna portion is substantially symmetric to the second antenna portion; a feed port for providing an unbalanced signal; a ground electrode formed on the substrate and electrically coupled to the first and second portions; and a balun coupled to the first and second antenna portions, the feed port and the ground electrode, the balun adapting the unbalanced signal from the feed port to a balanced signal for the first and second antenna portions or adapting a balanced signal from the first and second antenna portions to a unbalanced signal for the feed port, wherein the substrate, the first and second antenna portions, and the ground electrode are configured to form a CRLH structure providing a left-handed (LH) mode and resonance right-handed (RH) mode resonance. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A device, comprising:
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a substrate; a first antenna portion supported by the substrate; a second antenna portion supported by the substrate and coupled to the first antenna portion, herein the first antenna portion is substantially symmetric to the second antenna portion; a feed port for providing an unbalanced signal; and a balun coupled to the first and second antenna portions, the feed port and a ground electrode, the balun adapting the unbalanced signal from the feed port to a balanced signal for the first and second antenna portions or adapting a balanced signal from the first and second antenna portions to a unbalanced signal for the feed port, wherein the substrate, and the first and second antenna portions are configured to form a CRLH structure providing a left-handed (LH) mode resonance and a right-handed (RH) mode resonance. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A device, comprising:
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a CRLH dipole antenna structure, comprising; a first antenna portion; a second antenna portion electrically coupled to the first antenna portion, the second antenna portion is substantially symmetric to the first antenna portion; a feed port; and a ground electrode electrically coupled to the first and second antenna portions; and a balun coupled to the first and second antenna portions, the feed port and the ground electrode, the balun adapted to; phase shift a signal communicated at the feed port to form a first signal for the first antenna portion and a second signal for the second antenna portion; wherein the CRLH dipole antenna structure provides a left-handed (LH) mode resonance and a right-handed (RH) mode resonance. - View Dependent Claims (41)
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42. A method, comprising:
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forming a first CRLH radiating element on a substrate; forming a second CRLH radiating element on a substrate; and forming a common conductive line connected to the first and second radiating elements; forming a feed port for providing an unbalanced signal; and forming a balun coupled to the first and second CRLH radiating elements, the feed port and the common conductive line, the balun adapting the unbalanced signal from the feed port to a balanced signal for the first and second CRLH radiating elements or adapting a balanced signal from the first and second CRLH radiating elements to an unbalanced signal for the feed port; wherein each of the first and second radiating elements provide a left-handed (LH) mode resonance and a right-handed (RH) mode resonance. - View Dependent Claims (43)
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Specification